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US 8,439,232 B2Granted
Manual pump type fluid dispenser and a method of manufacturing such a dispenser
AssigneeLeafgreen Limited
InventorsKeith Laidler, Timothy Rodd
Life of this patent
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AssigneeLeafgreen Limited
InventorsKeith Laidler, Timothy Rodd
Estimating the term…
A manual pump action dispenser for dispensing at least one liquid from a container, the dispenser comprising a base and a cap (114) having an outlet (144) for the liquid, the base being mountable to or forming part of a container and the cap (114) being mountable to the base for movement relative to the base between a rest position and an actuated position, the dispenser further comprising a flexible insert (116) locatable between the base and the cap (114) to define a first pump chamber (122) for dispensing said at least one liquid, the insert being adapted to engage with the base to define an inlet through which said at least one liquid to be dispensed can enter the first pump chamber, the dispenser further comprising an inlet valve operable to enable liquid to enter the first pump chamber (122) through the inlet and an outlet valve arrangement operable to control the release of liquid from the first pump chamber through the outlet, in which the insert also defines a second pump chamber (123) for dispensing a second fluid.
A manual pump action dispenser for dispensing at least one liquid from a container, the dispenser comprising a base and a cap having an outlet for the liquid, the base being mountable to or forming part of a container and the cap being mountable to the base for movement relative to the base between a rest position and an actuated position, the dispenser further comprising a flexible insert locatable between the base and the cap to define a first pump chamber for dispensing said at least one liquid, the insert being a single unitary element adapted to engage with the base to define an inlet through which said at least one liquid to be dispensed can enter the first pump chamber, the dispenser further comprising an inlet valve operable to enable liquid to enter the first pump chamber through the inlet and an outlet valve arrangement operable to control the release of liquid from the first pump chamber through the outlet, the insert also defining a second pump chamber for dispensing a second fluid, the insert comprising a main body portion, a first flexible diaphragm member which extends generally radially outwardly from the main body for contact with an inner surface of the cap to define one of the first and second pump chambers between itself and a closed end of the cap, the insert having a second flexible diaphragm member extending generally radially outwardly from the main body for contact with an inner surface of the cap, the other of the first and second pump chambers being defined inside the cap between the first and second diaphragm members.
A manual pump action dispenser for dispensing a liquid from a container, the dispenser comprising a base and a cap having an outlet for the liquid, the base being mountable to or forming part of the container and the cap being mountable to the base for movement between a rest position and an actuated position, the dispenser further comprising a flexible insert locatable between the base and the cap to define a pump chamber for the liquid, the insert being adapted to engage with the base to define an inlet through which the liquid to be dispensed can enter the pump chamber, the dispenser further comprising a one way inlet valve operable to enable liquid to enter the pump chamber through the inlet and a one way outlet valve arrangement operable to control the release of liquid from the pump chamber into the outlet, the dispenser having a trigger type actuation surface adapted to be gripped by a users fingers and pulled towards the container to actuate the dispenser.
A manual pump dispenser for dispensing a fluid, the dispenser comprising a base and a dispensing cap having an outlet mounted to the base, the dispenser further comprising a single unitary insert mountable between the base and the cap to define at least one pump chamber between itself and the cap, the insert being adapted to engage with the base to define an inlet through which a fluid can be drawn into the pump chamber from a fluid source, in which the insert comprises a central core and a resiliently flexible diaphragm member projecting upwardly and generally radially outwardly from the core for contact with the cap to at least partially define the at least one pump chamber within the cap, the insert being movable between an initial resiliently biased configuration in which the volume of the at least one pump chamber is at a maximum and a deformed configuration in which the volume of the at least one pump chamber is at a minimum, in the deformed configuration, the upper diaphragm being at least partially folded down about itself and/or the core.
Dependencies are inferred from the claim text.